Seismic evaluation of steel beam-column connection equipped by circular slit dampers

Q3 Engineering

Pollack Periodica Pub Date : 2024-04-22 DOI:10.1556/606.2024.00996

Alaa T. Mohammed, H. Sultan

引用次数: 0

Abstract

This study evaluates metallic yield dampers, specifically slit steel dampers, for protecting steel beam-to-column connections during seismic events. Finite element model simulations were conducted for the damper and its connection. Analysis of circular parameters, like the radius slot, showed that appropriately sized slit dampers exhibit advantageous seismic behavior. Moment-rotation, hysteresis curves, and plastic stresses comparisons indicate efficient energy absorption. The maximum moment was 25% lower than conventional samples. The slit steel damper model with a ductility factor of 3.5 allows significant plastic deformation before potential failure. Results emphasize the slit damper's potential for optimal performance in steel frames, suggesting its use for efficient energy absorption.

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配备圆形缝隙阻尼器的钢梁-钢柱连接的抗震评估

本研究评估了金属屈服阻尼器，特别是狭缝钢阻尼器，用于在地震事件中保护钢梁与钢柱的连接。对阻尼器及其连接进行了有限元模型模拟。对半径槽等圆形参数的分析表明，尺寸适当的狭缝阻尼器具有良好的抗震性能。力矩-旋转、滞后曲线和塑性应力比较表明，阻尼器能有效吸收能量。最大力矩比传统样本低 25%。延性系数为 3.5 的狭缝钢阻尼器模型可在潜在失效前产生显著的塑性变形。研究结果表明，狭缝阻尼器具有在钢框架中实现最佳性能的潜力，建议将其用于有效的能量吸收。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Pollack Periodica Engineering-Civil and Structural Engineering

CiteScore

1.50

自引率

0.00%

发文量

期刊介绍： Pollack Periodica is an interdisciplinary, peer-reviewed journal that provides an international forum for the presentation, discussion and dissemination of the latest advances and developments in engineering and informatics. Pollack Periodica invites papers reporting new research and applications from a wide range of discipline, including civil, mechanical, electrical, environmental, earthquake, material and information engineering. The journal aims at reaching a wider audience, not only researchers, but also those likely to be most affected by research results, for example designers, fabricators, specialists, developers, computer scientists managers in academic, governmental and industrial communities.